Radio going off / restarting when playing with headlights

[HCD Velcra]

Guys, recently Ive noticed that my radio is turning off for some seconds and restarting when I play around with any of the lights, like head or fogs. Not every time but especially often when I hit the high beam for a couple of times like when you wanna greet somebody.

Do you got a clue what could be the cause of such things?

 

Thanks and regards from germany

[GTSBoy]

You likely have a bad earth somewhere. Or possibly the headlight switch or dip switch have dirty contacts.

I had this happen when an exhaust pyro gauge was dying. It pulled the power in the console area low enough to drop the stereo out (and then as it died completely I couldn't start the car). I wouldn't suggest you have the same problem I did, just demonstrating that power issues have been seen to cause the same thing you're seeing.

The headlights pull a lot of current. If that current can't get to earth (on the other side of the headlights) you might cause some weird voltage issue in the dash/console.

[HCD Velcra]

Hey mate

Ye even though Im not very skilled in electrical stuff, thats the first thought I had. I have to edit my post, its not only the car thats going down its the ignition. I can tell by the antenna thats going down as you know well too, and by the defi gauges that start the launching animation.

 

So how could I attack this problem now?

[TurboTapin]

I'd start by checking if the common grounds between your lights and radio are clean and tight. See my link below and report back if you don't find anything. Cheers. 

https://www.dropbox.com/sh/jl8xtprmam0iiuy/AAAQn3fxW_-jiQPGOXX6bOyFa?preview=R33+Wiring+Diagram.pdf

[Millerman]

Someones probably wired headunit wrong 

make sure black wire (earth) is going to metal instead of going to another wire